Finally was able to setup my eTrayz, after several days of frustration. Very fulfilling indeed.
Anyway, just to share my experience. My original problem was the eTrayz was not detected on the network (connected to router) and even on directly connecting it to the computer.
To diagnose the problem, I followed the steps below:
1. Remove the HDD from the eTrayz and boot the device. eTrayz was detected successfully in the network. However, when I install the HDD and ran the installation program. IT was a no Go.
2. Reformatted the HDD to NTFS in my windows machine and reinstalled it back to the eTrayz. Back to the original problem wheren the eTrayz was not successfully detected.
3. The third step that I did was to go to ramdisk mode (according to xtreamer forum), by simultaneously hitting the reset and on button.
Finally, both the eTrayz and HDD was detected and I was able to successfully finish my installation.
Hope this help others.